3459209 has 4 divisors (see below), whose sum is σ = 3725316. Its totient is φ = 3193104.

The previous prime is 3459199. The next prime is 3459227. The reversal of 3459209 is 9029543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 319225 + 3139984 = 565^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 3459209 - 2¹² = 3455113 is a prime.

It is a super-2 number, since 2×3459209² = 23932253811362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3459299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133034 + ... + 133059.

It is an arithmetic number, because the mean of its divisors is an integer number (931329).

Almost surely, 2^3459209 is an apocalyptic number.

It is an amenable number.

3459209 is a deficient number, since it is larger than the sum of its proper divisors (266107).

3459209 is a wasteful number, since it uses less digits than its factorization.

3459209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266106.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3459209 is about 1859.8948895032. The cubic root of 3459209 is about 151.2373064957.

The spelling of 3459209 in words is "three million, four hundred fifty-nine thousand, two hundred nine".